ESD10.5 - Universal Direct Shear Device
ESD10.5 - Universal Direct Shear DeviceESD10.5 - Universal Direct Shear Device
Direct Shear Testing, Cyclic Shear Testing, Simple-Shear-Tests acc. ASTM D6528-07
also adaptable for Triaxial Testing, Uniaxial Testing, Unidimensional Compression Tests
This universal and modular laboratory device is equipped with electromechanical spindle drives (in the vertical and horizontal spindle) for force, displacement and speed-controlled tests.
The device consists of a shear box type SSD5 shear box and a test press (equivalent to ELS25) for generating normal stress. The control electronics of the shear box are integrated in the housing of the test press. The shear box is placed in the center of the load frame in the same way as an oedometer or triaxial cell. If the shear box is electrically connected to the test press, the test device automatically recognizes the new functionality, adjusts the application on the touch screen accordingly and limits the maximum load to the value permitted for the shear box. If the electrical connections between the shear box and the load frame are separated, the universal test machine is available for odometer tests, uniaxial tests or triaxial tests with its full load range.
- intuitive operation and easy handling with 4,3” touch screen with separate function keys and haptics
- high speed multi-core-system with bus coupling, each drive unit (e.g. horizontal and vertical gear) using it’s own high resolution closed-loop controller with 1 ms sampling time
- precision electromechanical drive for controlled normal stress generation
- regulated electromechanical drive to generate the horizontal shear stress
- robust construction, all water or soil-contacting parts are made of stainless steel, including the filter stones
- very compact design with separate guide bars in the shear box; high stiffness frame (free of tilting)
- horizontal low-friction guided lower shear box and a vertical low-friction guided upper shear box designed as “floating” guidance; both with low-friction bearings
- vertical low-friction guided thrust plate (tilt free)
- testing with constant volume conditions / dilatancy-free testing
- stepless adjustment and fixation of the shear gap after consolidation process
- measurement of a external analog signal (e.g. temperature sensor)
- serial interface for PC-controlled testing with data logging; cyclic measurement data logging with GeoDESC software, displaying and transfering to Microsoft EXCEL for advanced evaluation purposes
- Accesories for sample installation
- available shear boxes in the following sizes: 5.0 cm² (round, Ø = 25.4 mm) 36 cm² (60 x 60 mm) 40 cm² (round, Ø = 71.4 mm) 50 cm² (round, Ø = 79.8 mm) 70 cm² (round, Ø = 94.4 mm) 100 cm² (100 x 100 mm) other sizes on request
- Simple-Shear insert with sample mounting accessories, round Ø = 94.4 mm (70 cm²)
max. normal load: | 25 kN (10 kN with shear box) |
max. shear force: | 5 kN |
max. shear path: | 30 mm |
shear rate: | 0,001 .. 10 mm/min |
setup speed: | 50 mm/min (vertical movement) 25 mm/min (horizontal movement) |
settlement measuring: | max. max. 60 mm, resolution 1µm (depending on dial gauge) |
shear path measurement: | 25 mm (with digital dial gauge) |
power supply: | 230 V AC, 50 Hz |
dimensions: | 400 x 400 x 1500 mm (W x D x H) |
weight: | approx. 110 kg |